“Greetings Head-fi!
I'm just going to leave a quick and dirty review for these since they never really seemed to gain any ground in sales/reviews from what I've noticed.
Packaging:
I quite like the look of the packaging. It is elegant, and clean in image. The experience falls apart somewhat when you try to take the product out. This is a...” --B9Scrambler

“I`ve had these for about 2 months now so I think I have a pretty good idea of what they are all about. Before I started using them, I let them burn in for about 100 hours. Previously, I owned a pair of Sennheiser Momentum IEMs and a pair of Shure 215s. These are far better than either of those two. These really make my commute more bearable.
These are...” --FiveYears

“ Introduction Having had extensive experience with the previous Wood series of JVC, FX500 and FX700, I was exited to see what the company had planned for this next iteration. They introduced FX650 to replace the FX500 and FX750 to replace the FX700, in addition to announcing the new flagship, FX850. Thanks to user James444, I was able to hear all 3 IEMs of this new...” --Inks

“The bass is very good for the price and the driver size. The sound however, could be improved further by equalization. The highs are suprisingly good but these headphones are lacking a bit of the mids. These headphones are very lightweight and comfortable, allowing up to long hours of use.
However, I can still remember the time I took these headphones out of the box, they sounded awful....” --ryanwee9889

“
This is great for the price. Its sound reminds me of Stax headphones or electrostatic speakers, both of which I don't own, but have heard on a few occasions. It needs extensive(100+ hours?) breaking in to help tame the highs and bring out the bass. If you want a slightly warmer sound or are treble sensitive, then choose the Panasonic RP-HJE355 instead, although some may want...” --JK1

Manufactured using JVC's advanced thin film processing technology, the wood dome diaphragms used in the HA-FX1000 reproduce natural sound
Wood housing creates tonal characteristics similar to that of a musical instrument
A high-specific gravity brass ring on a steel unit base forms the Bi-METAL structure which controls movement of the diaphragm
One pair of memory foam and three...

“
These must have been designed with some singular purpose in mind. They did not sound right to me in terms of balance, dynamics and detail. Very bass heavy. A lot of technology but ergonomics and fit suffer imo. I like the attempt and the price of these and recommend for those who like to investigate the extremes of bass heavy sound. They might be just what you're looking for, Give 'em a try,
” --thelostMIDrange

“I borrowed these from a friend as a trial and I can see why he likes them, unfortunately I do not share the same appreciation. Original review updated an extra half a star added.
Let me elaborate on this as it's no justification at all to dismiss these earphones because I have a personal preference. So with over 100 hours of burn in and a pain staking few days getting used to...” --dnun8086

“
I purchased these headphones (ear buds) on my way into work yesterday after desiring something that works - and, hopefully a bit better than my Skull Candy Ink'd ear buds (which have one dead channel) and better than my Sennheiser in-ear ear buds that, for some reason, are no longer producing a nice level of bass - mainly a lot of higher frequency screeching.
After fighting...” --wje